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On One Page

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Gene |

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Expression|

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Standard Name	tnaC
Gene Synonym(s)	ECK3700, b3707, JW3685, tnaL^[1], tnaL
Product Desc.	tna operon leader peptide^[2]^[3] Regulatory leader peptide for tna operon^[4]
Product Synonyms(s)	tryptophanase leader peptide^[1], B3707^[2]^[1], TnaC^[2]^[1], TnaL^[2]^[1] , ECK3700, JW3685, tnaL, b3707
Function from GO	<GO_nr />
Knock-Out Phenotype
Regulation/Expression	transcription unit(s): tnaCAB^[2], OP00116, tna, tnaAB
Regulation/Activity
Quick Links
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Notes

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Gene

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Nomenclature

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See Help:Gene_nomenclature for help with entering information in the Gene Nomenclature table.

Standard name	tnaC
Mnemonic	Tryptophanase
Synonyms	ECK3700, b3707, JW3685, tnaL^[1], tnaL
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Notes

Location(s) and DNA Sequence

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<protect> See Help:Gene_location for help entering information in the Gene Location and DNA sequence table.

Strain	Map location	Genome coordinates	Genome browsers	Sequence links
MG1655	83.77 minutes	MG1655: 3886458..3886532 <gbrowseImage> name=NC_000913:3886458..3886532 source=MG1655 preset=GeneLocation </gbrowseImage>	EcoCyc GBrowse(MG1655)	FASTA Dump EcoCyc Sequence Dump
REL606		NC_012967: 3848796..3848870 <gbrowseImage> name=NC_012967:3848796..3848870 source=REL606 preset=GeneLocation </gbrowseImage>	GBrowse (REL606)	FASTA Dump
BW2952		NC_012759: 3774791..3774865 <gbrowseImage> name=NC_012759:3774791..3774865 source=BW2952 preset=GeneLocation </gbrowseImage>	GBrowse (BW2952)	FASTA Dump
W3110		W3110: 3751980..3751906 <gbrowseImage> name=NC_007779:3751906..3751980 source=W3110 preset=GeneLocation </gbrowseImage>	GBrowse(W3110)	FASTA Dump
DH10B		DH10B: 3984042..3984116 <gbrowseImage> name=NC_010473:3984042..3984116 source=DH10B preset=GeneLocation </gbrowseImage>	GBrowse(DH10B)	FASTA Dump
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Notes

Sequence Features

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See Help:Gene_sequence_features for help in entering sequence features in EcoliWiki.

Feature Type	Strain	Genomic Location	Evidence	Reference	Notes
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Notes

Alleles and Phenotypes

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See Help:Gene_alleles for how to enter or edit alleles and phenotypes in EcoliWiki.

Allele	Nt change(s)	AA change(s)	Phenotype: Type	Phenotype: Description	Reference	Availability
tnaC(del) (Keio:JW3685)	deletion	deletion			PMID:16738554	Shigen CGSC10694^[5]
tnaC-738(del)::kan					PMID:16738554	CGSC:103160
tnaC(del)	deletion	deletion	motility	Increased motility compared to wild-type strain, figure 6.	PMID:17511876
tnaC(del)	deletion	deletion	Intracellular metabolites	Decreased intracellular indole (10% of wild-type levels)-Fig. 2	PMID:17511876
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Notes

Genetic Interactions

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Interactor	Interaction	Allele	Score(s)	Reference(s)	Accessions	Notes
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Notes

Genetic Resources

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See Help:Gene_resources for help entering information into the Genetic Resources table.

Resource	Resource Type	Source	Notes/Reference
JW3685	Plasmid clone	Shigen	PMID:16769691 Status:Clone OK Primer 1:GCCAATATCTTACATATATGTGT Primer 2:CCAGGGCGGTGATCGACAATTTT
2A2	Kohara Phage	Genobase	PMID:3038334
3F11	Kohara Phage	Genobase	PMID:3038334
zid-501::Tn10	Linked marker	CAG18499 = CGSC7458^[5]	est. P1 cotransduction: 65% ^[6]
rbsD296::Tn10	Linked marker	CAG18501 = CGSC7460^[5]	est. P1 cotransduction: 15% ^[6] Synonyms:zie-296::Tn10
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Notes

Accessions in Other Databases

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See Help:Gene_accessions for help with entering information into the Gene Accessions table.

Database	Accession	Notes
EcoCyc	EcoCyc:EG11276	Escherichia coli str. K-12 substr. MG1655
EcoGene	EcoGene:EG11276	Escherichia coli str. K-12 substr. MG1655
RegulonDB	RegulonDB:ECK120001250	Escherichia coli str. K-12 substr. MG1655
NCBI (EcoliWiki Page)	GeneID:948223	Escherichia coli str. K-12 substr. MG1655
EchoBASE	EchoBASE:EB1254	Escherichia coli str. K-12 substr. MG1655
ASAP	ASAP:ABE-0012128	Escherichia coli str. K-12 substr. MG1655
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Notes

Links

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Name	URL	Comments
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Product(s)

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Nomenclature

See Help:Product_nomenclature for help entering or editing information in this section of EcoliWiki.

Standard name	TnaC
Synonyms	tryptophanase leader peptide^[1], B3707^[2]^[1], TnaC^[2]^[1], TnaL^[2]^[1] , ECK3700, JW3685, tnaL, b3707
Product description	tna operon leader peptide^[2]^[3] Regulatory leader peptide for tna operon^[4]
EC number (for enzymes)
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Notes

Function

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<protect> Gene Ontology
See Help:Gene_ontology for help entering or editing GO terms and GO annotations in EcoliWiki.

Qualifier	GO ID	GO term name	Reference	Evidence Code	with/from	Aspect	Notes	Status
	GO:0031556	transcriptional attenuation by ribosome	GOA:interpro GO_REF:0000002	IEA: Inferred from Electronic Annotation	InterPro:IPR012620	P	Seeded from EcoCyc (v14.0)	complete
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Interactions See Help:Product_interactions for help entering or editing information about gene product interactions in this section of EcoliWiki.

Partner Type	Partner	Notes	References	Evidence
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Notes

The nascent TnaC leader peptide prevents rho-dependent termination. allowing expression of downstream genes.

Localization

See Help:Product_localization for how to add or edit information in this section of EcoliWiki.

Compartment	Description	Evidence	Reference/Source	Notes
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Notes

Structure and Physical Properties

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<protect> Physical Properties See Help:Product_physical_properties for help entering or editing information about the physical properties of this gene product.

Name
Sequence	at EcoCyc MNILHICVTS KWFNIDNKIV DHRP
Length	24
Mol. Wt	2.893 kDa
pI	8.5 (calculated)
Extinction coefficient	5,500 - 5,625 (calc based on 0 Y, 1 W, and 1 C residues)
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Domains/Motifs/Modification Sites

See Help:Product_domains_motifs for help entering or editing information in this section of EcoliWiki.

Type	Residues	Description	Notes	References
Domain	1..24	PF08053 Tryptophanese operon leader peptide		PMID:19920124
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<motif_map/>

Structure
See Help:Product_structure for help entering or editing information in this section of EcoliWiki.

Structures

<beststructure> gene=tnaC taxon=562,83333 </beststructure>

Models

View models at:

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Structure figures

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Notes

Gene Product Resources

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See Help:Product_resources for help with entering or editing information in this section of EcoliWiki.

Resource type	Source	Notes/Reference
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Notes

Accessions in Other Databases

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See Help:Gene_accessions for help with entering information into the Gene Accessions table.

Database	Accession	Notes
NCBI (Protein) (EcoliWiki Page)	GI:16131575	Escherichia coli str. K-12 substr. MG1655
NCBI (Protein) (EcoliWiki Page)	GeneID:948223	Escherichia coli str. K-12 substr. MG1655
ASAP	ASAP:ABE-0012128	Escherichia coli str. K-12 substr. MG1655
UniProt (EcoliWiki Page)	UniProtKB/Swiss-Prot:P0AD89	Escherichia coli str. K-12 substr. MG1655
EcoCyc	EcoCyc:EG11276	Escherichia coli str. K-12 substr. MG1655
EcoGene	EcoGene:EG11276	Escherichia coli str. K-12 substr. MG1655
NCBI (Gene) (EcoliWiki Page)	GeneID:948223	Escherichia coli str. K-12 substr. MG1655
RegulonDB	RegulonDB:ECK120001250	Escherichia coli str. K-12 substr. MG1655
EchoBASE	EchoBASE:EB1254	Escherichia coli str. K-12 substr. MG1655
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Notes

Links

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Name	URL	Comments
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Expression

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Overview

This is a placeholder for a summary statement on how expression of this gene product is regulated. You can help EcoliWiki by becoming a user and writing/editing this statement.

Cellular Levels

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See Help:Cellular levels

Molecule	Organism or Strain	Value	Units	Experimental Conditions	Assay used	Notes	Reference(s)
Protein	E. coli K-12 MG1655	1^a	molecules/cell/generation	Medium: MOPS Complete Temperature (°C): 37 Doubling time (min): *Growth phase: OD: other:	Ribosome Profiling	Low confidence in the sequencing data set.	PMID: 24766808
Protein	E. coli K-12 MG1655	55	molecules/cell/generation	Medium: MOPS Minimal Temperature (°C): 37 Doubling time (min): *Growth phase: OD: other:	Ribosome Profiling		PMID: 24766808
Protein	E. coli K-12 MG1655	27^a	molecules/cell/generation	Medium: MOPS Complete without Methionine Temperature (°C): 37 Doubling time (min): *Growth phase: OD: other:	Ribosome Profiling	Low confidence in the sequencing data set.	PMID: 24766808
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Notes

Transcription and Transcriptional Regulation

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See Help:Expression_transcription for help entering or editing information in this section of EcoliWiki.

Transcription unit(s)
tnaCAB
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Figure courtesy of RegulonDB

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Notes

This is a placeholder for a summary statement about how transcription of this gene is regulated. You can help EcoliWiki by becoming a user and writing/editing this statement.

Translation and Regulation of Translation

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<protect><gbrowseImage> name=NC_000913:3886438..3886478 source=MG1655 type=Gene+DNA_+Protein preset=Nterminus </gbrowseImage> This picture shows the sequence around the N-terminus.

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Notes

This is a placeholder for a summary statement about how translation of this gene product is regulated. You can help EcoliWiki by becoming a user and writing/editing this statement.

Turnover and Regulation of Turnover

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Notes

This is a placeholder for a summary statement about turnover of this gene product. You can help EcoliWiki by becoming a user and writing/editing this statement.

Experimental

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<protect> Mutations Affecting Expression See Help:Expression_mutations for help entering or editing information in this section of EcoliWiki.

Allele Name	Mutation	Phenotype	Reference
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Expression Studies See Help:Expression_studies for help entering or editing information in this section of EcoliWiki.

Type	Reference	Notes
microarray	GEO Profiles:b3707 (EcoliWiki Page)	NCBI GEO profiles for tnaC
microarray	GenExpDB:b3707 (EcoliWiki Page)	Summary of data for tnaC from multiple microarray studies
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Expression Resources See Help:Expression_resources for help entering or editing information in this section of EcoliWiki.

Resource Name	Resource Type	Description	Source	Notes
	GFP Fusion	Intergenic region (3885744..3886116) fused to gfpmut2.	OpenBioSystems	GFP fusion described in Zaslaver, et al. Plate:109-AZ02; Well:F9^[7]
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Notes

Accessions Related to tnaC Expression

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See Help:Gene_accessions for help with entering information into the Gene Accessions table.

Database	Accession	Notes
EcoCyc	EcoCyc:EG11276	Escherichia coli str. K-12 substr. MG1655
EchoBASE	EchoBASE:EB1254	Escherichia coli str. K-12 substr. MG1655
EcoliGenExpDB (EcoliWiki Page)	EcoliGenExpDB:b3707
EcoGene	EcoGene:EG11276	Escherichia coli str. K-12 substr. MG1655
RegulonDB	RegulonDB:ECK120001250	Escherichia coli str. K-12 substr. MG1655
ASAP	ASAP:ABE-0012128	Escherichia coli str. K-12 substr. MG1655
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Notes

Links

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Name	URL	Comments
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Evolution

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Homologs in Other Organisms

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See Help:Evolution_homologs for help entering or editing information in this section of EcoliWiki.

Organism	Homologs (Statistics)	Comments
Shigella flexneri	TNAL	From SHIGELLACYC
E. coli O157	TNAL	From ECOO157CYC
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Notes

Families

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<protect> See Help:Evolution_families for help entering or editing information in this section of EcoliWiki.

Database	Accession	Notes
Pfam (EcoliWiki Page)	PF08053 Tryptophanese operon leader peptide
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Notes

Links

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Name	URL	Comments
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References

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See Help:References for how to manage references in EcoliWiki.

↑ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 ^1.6 ^1.7 ^1.8 ^1.9 Riley, M. et al. (2006) Nucleic Acids Res 34:1-6 (corrected supplemental data from B. Wanner)
↑ ^2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 ^2.6 ^2.7 ^2.8 EcoCyc (release 10.6; 2007) Keseler, IM et al. (2005) Nucleic Acids Res. 33(Database issue):D334-7
↑ ^3.0 ^3.1 EcoCyc (release 11.1; 2007) Keseler, IM et al. (2005) Nucleic Acids Res. 33(Database issue):D334-7
↑ ^4.0 ^4.1 EcoGene: Rudd, KE (2000) EcoGene: a genome sequence database for Escherichia coli K-12. Nucleic Acids Res 28:60-4.
↑ ^5.0 ^5.1 ^5.2 CGSC: The Coli Genetics Stock Center
↑ ^6.0 ^6.1 The Tn10 insertion sites determined by Nichols et al. 1998 (PMID:9829956) were reannotated by alignment with E. coli K-12 genome sequence (GenBank accession NC_000913). P1 contransduction frequencies were calculated using the formula of Wu (PMID:5338813).
↑ Zaslaver, A et al. (2006) A comprehensive library of fluorescent transcriptional reporters for Escherichia coli. Nat. Methods 3 623-8 PubMed

tnaC:On One Page

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Notes

Gene

Nomenclature

Notes

Location(s) and DNA Sequence

Notes

Sequence Features

Notes

Alleles and Phenotypes

Notes

Genetic Interactions

Notes

Genetic Resources

Notes

Accessions in Other Databases

Notes

Links

Product(s)

Nomenclature

Notes

Function

Notes

Localization

Notes

Structure and Physical Properties

Structure figures

Notes

Gene Product Resources

Notes

Accessions in Other Databases

Notes

Links

Expression

Overview

Cellular Levels

Notes

Transcription and Transcriptional Regulation

Notes

Translation and Regulation of Translation

Notes

Turnover and Regulation of Turnover

Notes

Experimental

Notes

Accessions Related to tnaC Expression

Notes

Links

Evolution

Homologs in Other Organisms

Notes

Families

Notes

Links

References

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